src/java/org/mxchange/addressbook/beans/addressbook/AddressbookWebBean.java

   1 /*
   2  * Copyright (C) 2015 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.addressbook.beans.addressbook;
  18
  19 import java.text.MessageFormat;
  20 import java.util.ArrayList;
  21 import java.util.List;
  22 import javax.annotation.PostConstruct;
  23 import javax.enterprise.context.SessionScoped;
  24 import javax.faces.view.facelets.FaceletException;
  25 import javax.inject.Inject;
  26 import javax.inject.Named;
  27 import javax.naming.Context;
  28 import javax.naming.InitialContext;
  29 import javax.naming.NamingException;
  30 import org.mxchange.addressbook.beans.login.UserLoginWebController;
  31 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  32 import org.mxchange.addressbook.model.addressbook.Addressbook;
  33 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  34 import org.mxchange.addressbook.model.addressbook.UserAddressbook;
  35 import org.mxchange.addressbook.model.addressbook.status.AddressbokStatus;
  36
  37 /**
  38  * A user bean (controller)
  39  * <p>
  40  * @author Roland Haeder<roland@mxchange.org>
  41  */
  42 @Named("addressbookController")
  43 @SessionScoped
  44 public class AddressbookWebBean implements AddressbookWebController {
  45
  46         /**
  47          * Serial number
  48          */
  49         private static final long serialVersionUID = 185_781_756_712_969L;
  50
  51         /////////////////////// Properties /////////////////////
  52         /**
  53          * A list of all user's address books
  54          */
  55         private List<Addressbook> addressbookList;
  56
  57         /**
  58          * Name of the address book
  59          */
  60         private String addressbookName;
  61
  62         /**
  63          * Remote address book bean
  64          */
  65         private final AddressbookSessionBeanRemote addressbookBean;
  66
  67         /**
  68          * Login controller
  69          */
  70         @Inject
  71         private UserLoginWebController loginController;
  72
  73         /**
  74          * Default constructor
  75          */
  76         public AddressbookWebBean() {
  77                 // Try it
  78                 try {
  79                         // Get initial context
  80                         Context context = new InitialContext();
  81
  82                         // Try to lookup
  83                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
  84                 } catch (final NamingException e) {
  85                         // Throw again
  86                         throw new FaceletException(e);
  87                 }
  88         }
  89
  90         @PostConstruct
  91         public void init() {
  92                 // Init list
  93                 this.addressbookList = new ArrayList<>(0);
  94
  95                 // Is the user logged-in?
  96                 if (this.loginController.isUserLoggedIn()) {
  97                         // Fill list with entries
  98                         this.addressbookList = this.addressbookBean.getUsersList(this.loginController.getLoggedInUser());
  99                 }
 100         }
 101
 102         @Override
 103         public boolean hasCreatedAddressbooks() {
 104                 // Is the user logged in?
 105                 if (!this.loginController.isUserLoggedIn()) {
 106                         // Not logged in
 107                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 108                 }
 109
 110                 // Check if the list is filled
 111                 return (!this.addressbookList.isEmpty());
 112         }
 113
 114         @Override
 115         public void addAddressbook() {
 116                 // Is this name already used?
 117                 if (!this.loginController.isUserLoggedIn()) {
 118                         // Not logged in
 119                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 120                 } else if (this.getAddressbookName() == null) {
 121                         // Address book name is null
 122                         throw new IllegalStateException("addressbookName is null");
 123                 } else if (this.getAddressbookName().isEmpty()) {
 124                         // Address book name is empty
 125                         throw new IllegalStateException("addressbookName is empty.");
 126                 } else if (!this.isAddressbookNameUsed(this.getAddressbookName())) {
 127                         // Already used by this user
 128                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 129                 }
 130
 131                 // Create address book instance with name
 132                 Addressbook addressbook = new UserAddressbook(this.getAddressbookName());
 133
 134                 // Set default status to UNLOCKED and owner
 135                 addressbook.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 136                 addressbook.setAddressbookUser(this.loginController.getLoggedInUser());
 137
 138                 try {
 139                         // Register this address book
 140                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(addressbook);
 141
 142                         // Remove name
 143                         this.setAddressbookName(null);
 144
 145                         // Add address book entry to list
 146                         this.addressbookList.add(updatedAddressbook);
 147                 } catch (final AddressbookNameAlreadyUsedException ex) {
 148                         // Throw again as cause
 149                         throw new FaceletException(ex);
 150                 }
 151         }
 152
 153         @Override
 154         public String getAddressbookName() {
 155                 return this.addressbookName;
 156         }
 157
 158         @Override
 159         public void setAddressbookName(final String addressbookName) {
 160                 this.addressbookName = addressbookName;
 161         }
 162
 163         @Override
 164         public boolean isAddressbookNameUsed(final String addressbookName) {
 165                 // Is it zero size?
 166                 if (null == addressbookName) {
 167                         // Is null
 168                         throw new NullPointerException("addressbookName is null"); //NOI18N
 169                 } else if (this.addressbookList.isEmpty()) {
 170                         // Not found!
 171                         return false;
 172                 }
 173
 174                 // Default is not found
 175                 boolean isFound = false;
 176
 177                 // Check all entries
 178                 for (final Addressbook addressbook : this.addressbookList) {
 179                         // Is the name same?
 180                         if (addressbook.getAddressbookName().equals(addressbookName)) {
 181                                 // Found a match
 182                                 isFound = true;
 183                                 break;
 184                         }
 185                 }
 186
 187                 // Return status
 188                 return isFound;
 189         }
 190 }